The actor, who is starring in the movie, Nightcrawler, opened up about his mother’s concern for his significant weight loss for the film.

“… I’d say my mother was worried,” the 33-year-old actor stated.

“I would say she just wanted me to be careful. But she also knew and knows how seriously I take what I do and she respects that.”

“She knows that I’m a big boy and I could handle myself and that I would stay within the realm of being safe, but yes, she worried. She’d be like, ‘You’re cranky—eat something.'”

Gyllenhall’s upcoming film has already received praise, especially for the actors acting skills. According to E! News the super star lost over 30 pounds for his role as an underground crime-scene videographer.

Jake’s mother wasn’t the only one concerned over the actor’s health. The celeb’s co-star, Rene Russo, as well expressed that she was worried for Jake.

“It’s incredible what he put his body through. I actually was worried.”

Thankfully it didn’t take long for Gyllenhaall to get back into tiptop shape. He looked better than ever during the premiere of his film at Toronto’s International Film Festival on Saturday. The actor wore a dashing grey suit and posed for numerous pictures with his costars while attending a Variety dinner.

Dan Gilroy’s film, Nightcrawler is set to premier for audiences on October 31.